Roller side bearing.



Patented Nov. 12, 1918.

I. F. OCONNOR.

ROLLER SlDE BEARING. APPLICAHON HLED mm. 30. IBM.

1,284,753. I &\\\\\\\\\\ INVENTOR. oiuv 0 Connor /%0f ATTO EY UNITEDSTATES PATENT OFFICE.

JOHN F. O'CONNOR, OF CHICAGO, ILLINOIS, ASSIGNOR T0 WILLIAM H. MINER, OFCHAZY, NEW YORK.

To all whom it may concern:

Beit known that I, Joux l. O'Coxx'oa. a citizen of the United States.residing at (.hicago. in the county of Cook and State ofIllinois. haveinvented a certain new and useful Improvement in Roller Side Bearings.of which the following is a full. clear, concise. and e.\actdescription. referenee be ing had to the accompanying drawings, forminga part of this Sp 'Cifittlllflll.

This invention relates to improvenants in roller side bearings.

The object of the invention is to provide a roller side hearing moreparticularly adapted for u e on railwa ears and wherein is employed aroller in'conihination with spring means. the latter being 50 arrangedas to return the roller to normal position after each actuation thereof.

In the drawing formin; a part of this specification. Figure 1 is avertical longitudinal section of a roller side bearingenrlmdying myimprm'mnents. And Fig. 2 is a transverse section of the structureillustrated in Fig. 1, and .takcn on the line '2-2 thereof. 1

In said drawing. '10 denotes a portion of a truck bolster to which theimproved roller side bearing. designated generallv bv the reference A.is pl'efelablv attached. and 11 a portion of the body bolster of a car.As will be understood. a roller side bearing is interposed between theopposite ends of the truck and body bolsters in the usual manner:

The improved side hearing A. as shown,

vcomprises a base casting 12 having lower flanges 13 by which it can beriveted or otherwise secured to the bolster and a hollow casing havingside walls 113113, curved end walls 14-14, and a central upwardlyextending transverse bearing portion or block 15. Mounted on the bearing1;) is the anti-friction roller 16. the same having a peripheral bearingsurface 17 adapted to engage with the upper bolster 11. and a lowercaring surface 18 resting upon the iaring 15 of the base casting. Saidbeari asurfaces 17 and 18 are niade concentric, "high the bearingsurface 18 of shorter rad SIthan that of the bearing surface 17. benormal position of the roller 16 is indicated in Fig. 1 andis-automatically maintained inthis position by spring means, the lattercomprising two oppositely Specification of Letters Patent.

Patented Nov. 12, 1918.

Application filed March 30, 1917. Serial No. 158,491.

: 1 rranged headed plungers 19avhose position I is controlled by springs20. Each of the springs 20 is mounted in a diagonally extendingrecess-.21 formedin the bearing 15 and each plunger 19,.e itends throughits corresponding spring and through a guiding opening 22 at the bottomof the recess '21. The plungers 19 are prevented from accidental removalby any suitable means such as cotters The heads of the plangers 19engage shoulders 21-21 on the un-,

der sides of the roller 16 and, as clearly appears from Fig. 2, theplungers and corresponding springs are off-set with respect to eachother. To prevent the roller 16 from falling out or becoming disengagedfrom the casting 12. a pin 25 is extended therethrough. the ends ofsaidpin working in elongated slots 26 formed in theside wall 113 of thecasting 12. To prevent aceidental displacement of the pin 25, washers 27are applied and cotters 28.

The roller 16 is normally slightly spaced from the bolster 11 but whenit comes into play, it is apparent that relative radial movement betweenthe bolsters 11 and 10 will roll or rock the roller 16 to one side orthe other. of its normal position, and the dotted lines in Fi 1 indicatethe extreme movement to one side. To limit the amount of rocking orrolling movement, the curved and walls 14 of the base casting are so 10-catcd as to form stops to engage the roller, as clearly appears fromFig. 1 at the place indicated bythe reference 29. As the roller isrocked or -rotated from normal, it is apparent that one of the plungers19 will be depressed against the action of its corresponding spring andthe base casting is preferably recessed, as indicated at 30-30, toaccommodate these movements of the plunge" U on removal of the pressurefrom too ml or 16, it is obvious that the plunger which has beendepressed will react under the influence of the spring and return ther01 or to normal position. The side walls of the base casting may berecessed, as indicated at 31, to permit any dirt orother foreign matterto be readily washed out.

By employing the bearing surface 18 of short radius, the bearing may bemade of relatively short length while at the same time the roller 16 isplaced under oompression and bending strains on a journal are avoided,such as are incident to many types of rollerside bearings. Y

I claim:

1. In a roller side bearing, the combination with a casting ada ted tobe secured to a bolster. said casting iarin a single centrally disposedtransverse hearing, of a roller mounted on said hearing, the bearinsurface of said roller engaging the top 0 said transverse bearing beingof less radius than the peripheral bearing Surface of the roller, saidroller thereby being placed under compression, and means for returningsaid roller to normal position after eaeh actuation thereof.

2. In a roller side hearing, the combination with a casting adapted tohe seeured to a bolster, said casting having a single eentrally disposedtransversely extending hearin of a roller-mounted on said casting, saidroTler having two eoueentrie bearing surfaces of difl'erent radii, thebearing surface of shorter radius engaging the top of said transversebearing of the (fasting, to thereby place the roller under eompression,and spring means mounted in the hearing of the casting adapted to returnthe roller to normal position after each actuation thereol'.

' 3. In a roller side hearing, the combination with a casting adapted tohe set-tired of the casting and to a holster, said casting having acentrally disposed transyersely extending hearing. of a roller mountedon said casting, said roller having two eoneenlrie 'hearing surfaces ofditl'erent radii. the hearing surt'areofshorter radius ngaging thebearing surfaee oi' the eastiug, and spring means mounted in the bearingof the ens-ting adapted to rel urn the roller to normal position aftereaeh actuation thereof, said spring means comprising oppositely arrangedspring eontrolled plungers, the latter enaging the under side of theroller.

4; In a roller side bearing, the combination with a hollow base castingadapted to he seeured to a bolster, the base casting having atransversely extending bearing therein,

of a roller mounted on said bearing of the ens-ting, means preventingaccidental disengagement of the roller from the casting. the hearing ofthe casting having oppositely arranged recesses therein, springs inattlll reeesses, and plungers controlled by "aid springs, said plungersnormally engaging the under side of the roller to maintain the latter innormal position.

In witness that I elaim the foregoing l have hereunto subscribed my namethis l th day of Mareh, 1917.

JOHN a. mu my in.-

